Are BAC Calculators Always Accurate?

When someone is pulled over for possible drunk driving, there are a few methods that police officials will use to prove if the driver is under the influence of alcohol.


It’s essential to know the accuracy of these calculators in order to protect yourself if you are ever pulled over for a DUI.


Breath analysis is used in many DUI cases to test blood alcohol concentrations. A breathalyzer is a device used by police to test blood alcohol content. The person is instructed to blow on the device, and it will show whether that person is over the legal BAC limit of 0.08 percent. Many people believe this device is always accurate, however, this isn’t necessarily the case.

Faulty Readings

It has been shown that these devices can be faulty or administered improperly, which can lead to giving a false reading. Breathalyzers do not actually test BAC levels directly; that requires a blood sample. What they do is estimate BAC levels indirectly.


The National Safety Council on Alcohol and Drugs also has recommended that there should be two breath samples collected and analyzed between two and ten minutes apart.


Because of this, it’s important for those pulled over and tested to know that just because these devices show a BAC of above 0.08 percent does not mean that the person is automatically guilty of driving under the influence.

How a DUI Defense Attorney Can Help You

An experienced DUI defense attorney will be able to look at the nuances of your case in order to determine possible defenses. This could include looking at what the police officer pulled you over for, how your intoxication was determined, and other factors that could help your case.


Before entering any plea or making a statement, you should have an attorney on your side to help you protect your rights.


Contact our experienced DUI defense firm at (888) 473-4058 to discuss your case.

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